What is EtherNet/IP and how is it used in automation?

EtherNet/IP (Ethernet Industrial Protocol) is an industrial protocol using standard Ethernet hardware with CIP (Common Industrial Protocol) application layer. Features: standard Ethernet (switches, cables, diagnostic tools), implicit messaging (real-time cyclic I/O data) and explicit messaging (configuration, diagnostics), device profiles (ensure interoperability), and integration with IT infrastructure. Applications: factory automation, motion control, safety (CIP Safety), and process control. Benefits: leverage standard Ethernet infrastructure, high bandwidth, easy integration with IT systems. Competes with PROFINET and Modbus TCP in industrial Ethernet space.